Hi,
You haven't indicated which PICaxe "Host" chips you plan to use, nor the required range for the transmission. I'm aware that shipping and Customs clearance into Australia sometimes has issues, but anyway the RFA001 is marked as "Out Of Stock" here in the UK PICaxe store. So I'll make a few "alternative" suggestions: The "Kit" you've proposed consists two simple PCBs carrying four separate (major) component parts:
Code:
Transmitter Board : NKM 2401 Encoder Chip (Included in AXE213 kit, or available separately)
: 433 MHz Transmitter Module (not included)
Receiver Board : 433 MHz Receiver Module (not included)
: NKM 2401 Decoder Chip (Included in AXE213 kit, or available separately)
If you
can source the AXE213 then it appears that these boards will accept different Radio modules to those supplied in the RFA001 package, if necessary.
If you
can't source the AXE 213 then it shouldn't be particularly difficult to assemble some "substitute" PCBs on Stripboard or Veroboard.
If you're using most modern PICaxes, except the 08M2 (and maybe 20X2?), then you can use use the
RFOUT command so
do not need the NKM 2401 Encoder chip. Similarly, these chips also have the
RFIN command which
could replace the NKM 2401 Decoder function, but RFIN is a "blocking" command, so here the NKM2401 does have some definite advantages, if available.
Finally, there are the Transmitter and Receiver Modules which should be available from various Australian sources (search for
433MHz), particularly Ebay (look for local stock, unless you're not in a hurry), but the problem is finding a "Good" supplier. It's not easy to search for Australian stock from here in UK, so probably it's best if you can post a link to any that you think might be suitable and we can at least "cast an eye" over the specification/seller. Sometimes the modules are sold as "Matching Pairs", sometimes individually and quite often a "Reasonable" Transmitter is sold with a "Rubbish" Receiver. However, a generally reliable Receiver is known as the RXB6 , so try looking for that.
If you need a "significant" wireless range, then we may also need to pay attention to supply voltages, transmitter powers and antenna designs, etc..
Cheers, Alan.